Dual polarized radiating dipole antenna

Abstract

The dual polarised radiating element comprises four dipoles each comprising one stand and two arms. A first arm and a second arm belonging to two adjacent dipoles, form a straight radiating strand composed of a single part and the four radiating strands are arranged so as to form a disjoint square at the corners. The antenna comprises at least one first radiating element operating in a first frequency band and at least one second radiating element operating in a second frequency band and having at least one dipole that is arranged at the centre of the square formed by the radiating strands of the first radiating element, the radiating elements being arranged above a common reflector such that the transverse strands of the first radiating elements are located between two adjacent second radiating elements.

1 . Dual polarised radiating element comprising four dipoles each comprising one stand and two orthogonal arms, wherein a first arm and a second arm belonging to two adjacent dipoles and being colinear form a straight radiating strand composed of a single part, and the four radiating strands are arranged so as to form a square that is disjoint at the corners. 
     
     
         2 . Radiating element according to  claim 1 , wherein the radiating strand is composed of a single conducting part and the end of the conducting part is folded so as to form folded prolongation at the end of the radiating strand. 
     
     
         3 . Radiating element according to  claim 2 , wherein the end of the conducting part forming folded prolongation is folded at 90° from the plane of the radiating strands. 
     
     
         4 . Radiating element according to  claim 2 , wherein the stand comprising two half-stands, the prolongation of the conducting part forms the half-stand of the stand of one of the dipoles involved in the radiating strand. 
     
     
         5 . Radiating element according to  claim 1 , wherein the dipole is powered by a power supply system comprising a power supply line and at least one ground plane that is the half-stand of the stand of the dipole. 
     
     
         6 . Radiating element according to  claim 5 , wherein the power supply system for a dipole has a stripline structure formed from a power supply line surrounded by two ground planes, each ground plane being one of the half-stands of the stand of the dipole. 
     
     
         7 . Radiating element according to  claim 5 , wherein the power supply system for a dipole has a microstrip structure formed from a power supply line adjacent to a ground plane that is the stand of the dipole. 
     
     
         8 . Radiating device comprising a first radiating element operating in a first frequency band according to  claim 1 , and at least one second radiating element operating in a second frequency band and comprising at least one dipole, arranged at the centre of the square formed by the radiating strands of the first radiating element, the radiating elements being arranged above a common reflector. 
     
     
         9 . Antenna comprising at least one first radiating element operating in a first frequency band according to  claim 1 , and at least one second radiating element operating in a second frequency band, the first and second radiating elements being aligned and arranged above a common reflector such that the transverse strands of the first radiating elements are located between two adjacent second radiating elements. 
     
     
         10 . Antenna according to  claim 9 , wherein partitions are arranged parallel to the alignment of the second radiating elements, inside the alignment of the first radiating elements. 
     
     
         11 . Antenna according to  claim 9 , in which parallelepiped, cubic or rectangular shaped cavities are arranged around the second radiating elements, inside the alignment of the first radiating elements.